Unscrambler construction



Aug- 7, 1956 D. R. MGKUNE 2,757,779

UNSCRAMBLER CONSTRUCTION ug 7, 1956 D. R. MCKUNE 2,757,779

UNSCRAMBLER CONSTRUCTION Filed March 19. 1951 2 Sheets--Sheefu 2 j2,750,779y lUNSCRAlVIBLER CONSTRUCTION Duane R. McKune, Dunedin, Fla.,assignor, by mesne assignments, to .Brogdxv Company, 'Orange County,

Fla.,a'corporation of Florida Application Marcil l1S), 1951, Serial No.216,387 14% Claims# (CI. 198-30) Thel present invention relatesgenerally to unscrambler constructions, .and more particularly to'a'nunscrambler construction incorporating a can positioning device adaptedselectively to rotate cans of non-round configuration to a predeterminedposition for single file delivery from the unscrambler,construction.

In brief, the present unscrambler construction comprises a feed beltassembly, a transition plate, a rotating assembly, -a retainingassembly, and a can positioning device including two separate beltassemblies adjustably spaced apart and moving at different rates ofspeed. The belt assemblies'are so positioned relative to each other andrelative .to a can displacing device included in the rotating assemblyas to induce `a rotative effect upon cans of non-round configurationywhen such cans are carried in an undesired position into vcontact withthe belt assemblies so that they may be readily discharged in singlefile. The belt assemblies may be drivenl either from the can displacingl' device by frictional meansy or, alternatively, by one or moreseparate prime movers.

It is an object of the present invention to provide an unscramblerconstruction incorporating a novel can positioning device whichcooperates with a can displacing device to provide `for the delivery ofnon-round cans therefrom in uniforms-ingle iile alignment.

It is another object of, the invention to provide an unscramblerconstruction incorporating a novel can positioning device which isadapted to rotate moving cans of non-round conguration to a desiredposition.

lt is another object to provide anunscrambler construction incorporatinga ynovelcan positioning device which comprises two belts adapted to moveat different rates l United States `Patent(l)l of speed and so arrangedas, to contact` opposite sides of a moving can of non-roundconfiguration to produce a desired rotation of the can. A f

, It is another object to provide an unscrambler constructionincorporating a novel 1can positioning. device having twoseparate beltassemblies, each adapted` to be driven through frictional engagementwith a can displacing device.

.It is another object to provide an unscrambler constructionincorporating a novel can positioning device having two separate beltassemblies adapted to be driven at different rates of speed by separateprime movers.

It is another object to provide a novel can positioning device forattachment to a known type of unscrambler construction. t

Other objects are to provide a novel can positioning device forcooperation with a known type of unscrambler construction for disposingcans of various cross sections in single ille, which device isrelatively inexpensive, which is efficient in itsl action, which iseconomical to operate, .which reduces to a minimum the needfor manualsupervision, and which is otherwise adapted to fulfill the objects andadvantages soughtrtherefor.

The foregoing and other objects and advantages are apparent from thefollowing description taken with the accompanying drawings, in which:l j

Fig. l-is a plan view of an unscrambler construction incorporating 4acan positioning device built in accordance withvthe teachings of thepresent invention, various portions unessential to the presentdisclosurebeing broken away for conservation of space;

y 2,157,719 Patented A ug. 7, 1956 Fig. 2 is a side elevational viewthereof; v

Fig. 3 is an enlargedfragmentary vertical cross-sectional view takengenerally along the line 3-3 of Fig. 1;

Fig. 4 is anenlarged ,fragmentary vertical cross-sectional view takengenerally along the line 4 4 of Fig. l;

Fig. 5 is .an enlarged fragmentary vertical cross-sectional view takengenerally along the line 55 of Fig. 1;

' Fig. 6 is a fragmentary horizontal cross-sectional view, takengenerally along the line 6-6 of Fig. 5;

Fig. 7 is a fragmentary'plan View of an unscrambler constructionincorporating a modification of the can positioning device shown inFigs', 1 through 6; and

Fig. 8 is a side elevational-iview thereof.

Referring to the drawings' more particularly by reference numerals, 15indicates generally an unscrambler construction incorporating a@ Vcan,positioning ldevice 16 built in accordance with the teachings of thepresent invention. Asis clear frornnFigs. l and 2 ofthe drawings, theunscrambler construction 1S comprises, in addition to the canpositioning device 16, a supporting frame 17, a feed belt assembly 18,atransition plate. 19, a rotating assembly 20, and a retaining assembly21.

The supporting frame 17 lis preferably constructed of angle iron 'andincludes parallel vrail members 25 supportedby vertical strut'sl26. `At`one end of the supporting frame 17, a horizontal arcuate strap member 27is secured to the two end struts 26 by'means of lugs 28 welded to themember 27 and secured either by welding or bolting to these struts 26.

The feed belt assembly 18 comprises a movable conveyor belt 30 driven'byconventional'means (not shown) connected to a shaft Y31 supported bytrunnon bearings 32 and carrying a drum 33 over which the belt 30passes. The upper run of the belt 30 may vbe further supported bytransversely extending bars 34 appropriately secured to the rail members2 5. Parallel retaining guides 35 are disposed adjacent theside edgesyof the`upper run of the belt 30 and are supported from the rail members2S by means of appropriate brackets 37.

The transition plate 19, shaped as clearly shown in Figs. 1 and 2, issupported on block members 40 resting on the rail members 25 so as todispose the upper surface at the level of the upper surface oftheconveyor belt 3i).

The rotating assembly 2t) includes a can displacing device in the formof a disc-like table 45, theperiphery of which is disposed adjacent anarcuateedge 46 of the transition plate 19, the upper surface of thetable 45 being at the same level as the upper surface of the plate 19.The table 45 is securely mountedupon a flanged hub 47 appropriatelysecured to a driven shaft 48 and is thus adapted for continuous rotationin the direction indicated by the directional arrows Al of Fig. l. Theshaft 48 is rotatable by conventional power means (not shown) and is inpart supported by a trunnon bearing 49 mounted on a channel 50 extendingbetween the two end struts 26. The peripheral edge of the table'45 has adepending flange S1 which is beveled to forma wedge-shaped rim 52, asclearly shown in Fig. 4, for a purpose to appear.

The retaining assembly 21 comprises an arcuately bent retaining plate 55disposed adjacent a peripheral portion of the rotating assembly 20 andsupported by one or more vertical channels 56 welded to the arcuatemember 27. A receiving end 57 of the retaining plate 55 is appropriatelyconnected to one of the guides 35 of the feed belt assembly 18. It willbe noted that the plate 55 extends from this guide 35 .around a portionof the table 45 so as to disposed an end 58 adjacent a portion of thecan positioningconstruction 16, as clearly shown in Figs. 1 and 2 of thedrawings.v v t The can positioning device 16 comprises an inner beltassembly 60 and an outer belt assembly 61, each of these assembliesbeing adapted forcontinuous operation independently of the other, aswill appear. The inner belt assembly includes a welded 'bracket 62secured to one of the rail members 25` by means of nut and boltassemblies 63 and comprising a vertical plate member 64 and a horizontalplate member `65. A tube 66, preferably of square cross section, has anut `67 welded to one of its ends, as best shown in Fig; 4. A sleeve 68,welded to the outside of the tube 66` intermediate the ends thereof,provides means for adjustably mounting the tube 66 to the upper surfaceof the horizontal plate member of the bracket 62, a nut and boltassembly 69 being employed to maintain ,the tube 66 in its adjustedposition, the bolt thereof passing vertically through the sleeve 68 andthe plate member 65 (Figs. 1 and 2). A square bar 70, having a stubshaft 71 welded at right angles thereto, has the greater portion of itslength slidably disposed within the tube 66 (Fig. 4). A compressionspring 72 in the tube 66 acts between the received end of the bar and aplug 73 backed by a cap screw 74 threadedly received in the nut 67,thereby providing adjustable means biasing the stub shaft 71 in adirection away from the tube 66. The horizontal ange of the appropriaterail member,25 may be notched as clearly indicated in Fig. l to provideclearance for the shaft 7l. A grooved idler wheel 75 containing abushing 76 is rotatably mounted upon the stub shaft 71, being retainedthereupon by a washer 77 and a nut 78. Thus mounted, the idler wheel is'adjustably biased into engagement with the wedge-shaped rim 52 of thetable 45, and it is apparent that the frictional engagement therebyeffected will cause the' idler wheel 75 to rotate when the table 45rotates.

The horizontal plate member 65 of the bracket 62 also supports avertically disposed stub shaft which is secured thereto by means of anut 86 threadedly engaging a reduced lower end thereof and whichrotatably mounts a drive pulley 87 shaped as clearly shown in Fig. 3. Anupper reduced portion 88 of the stub shaft 85 adjustably receives anL-shaped clamp member 89 having one end of a preferably squarehorizontally disposed tube 90 welded to a depending portion thereof, asbest shown in Figs. l and 3. The tube 90 slidably receives a bar 91 toone end of which is welded a vertical stub shaft 92 mounting an idlerpulley 93 retained on the shaft 92 by a washer 94 and a nut 95. A belt96 mounted in the grooves of the driven pulley 87 and the idler pulley93 may be adjustably tensioned through the slidable cooperation of thebar 91 and the tube 90, the latter having an aperture 97 over which anut 98 is welded which receives a setscrew 99 for maintaining theadjusted tension of the belt 96. rIlle position of the belt 96 relativeto the center of rotation of the table 45 is adjustable through thepivotable connection of the clamp member 89 with the portion 88 of thestub shaft 85. A cap screw 103 is provided to maintain this adjustedposition. A V-shaped deecting bar 100 is also welded to the tube 90 soas to extend horizontally therefrom generally in the direction ofrotation of the table 45, as clearly shown in Fig. l. It will be notedthat a wedge-shaped portion 102 of the drive pulley 87 engages thegrooved idler wheel 75 so as to be driven by the latter.

The outer belt assembly 61 includes a double-grooved drive pulley 105rotatably mounted on a stub shaft 106 and retained thereon by a washerand a nut 108. The drive pulley` 105 has a lower grooved section 107engaging the wedge-shaped rim 52 of the table 45 so as to be driventhereby as the table 45 rotates. The stub shaft 106 is welded adjacentone end of a bar 109 which, as best shown in Figs. 1, 5 "and 6, ishorizontally received in a preferably square tube 110. The tube 110 hasa nut 111 welded to one of its ends so as to receive a cap screw 112 forabutment with the received end of the bar 109. Two lugs 113 welded tothe bottom of the tube 110 depend therefrom so as to straddle a capscrew 114 which is threadedly received in a supporting channel seg- .4ment 115 welded to the arcuate member 27 of the support 17. Two washers116and' an `interposed "spring 117 are received on the ca! screw 114intermediate the head thereof and the depending lugs 113, thisarrangement serving adjustablytobias the tube 110 and, therefore, thedrive pulley 107 `in a direction toward the table 45. f

A plate bracket 120 welded to thechannel member 115 and to the arcuatemember 27 supports a stub shaft 121 mounting an idler pulley 122retained by a washer 123 and a nut 124. Due to the normal direction ofrotation of the pulley 122, as will appear, the stub shaft 121 issecured to the bracket 120 by means of both a nut 125 and a jamb nut126. It will be noted that a portion of the tube 110 rests upon thebracket 120 and, further, that the tube 110 is4 disposedl adjacent tothat sideof the stub shaft 121 which is away from the table 45 so thatthe shaft 121 may serve as a fulcrum when the drive pulley 105 is biasedinto engagement with the table 45. A belt is disposed in the `grooves ofthe drive pulley 105 and the idler pulley 122 and may be tensioned byadjustment of the cap screw 112 in abutment with the bar 109 asaforementioned.

It is to be observed that, while provision is made for retaining theidler wheel 75 and the drive pulleys 87 and 105 each on its respectiveshaft, each of the shafts 71, 85 and 106 is of sufficient length topermit substantial unobstructed vertical movement of the rotatableelement mounted thereon. Such an arrangement provides for continuousappropriate alignment between parts in moving engagement and thusovercomes such problems as warpage of the table 45, for example.

Operation The present unscramber construction 15 is driven byconventional power means (not shown) in power transmission connectionwith both the feed belt assembly 18 and the rotating assembly 20. Itwill thus be seen that,

' as the conveyor belt 30 and the table 45 are caused to move in thedirections indicated by the arrows A and B on Fig. 1, both the'innerbelt assembly 60 and the outer belt assembly 61 are activated by theirfrictional contact with the wedge-shaped rim 52 of the rotating table45.

' The aforementioned manner of mounting the idler pulley 75 provides forthe manual manipulation of this pulley to a position wherein it hasfrictional contact with both the wedge-shaped rim 52 and thewedge-shaped portion 102 of the drive pulley 87. Thus positioned, theidler pulley 75 is adjustably biased by means of the spring 72 tomaintain adequate driven and driving relationships with the table 45 andthe drive pulley 87, respectively. The belt 96, properly tensioned asaforementioned, is thus caused to move continuously in a direction suchthat the run farthest removed from the center of rotation of the table45 moves generally in continuation of the rotating movement of the table45. Similarly, the belt assembly 6l is actuated through spring-biasedcontact of the grooved section 107 of the drive pulley 105 with thewedge-shaped rim 52 of the rotating table 45. It will be noted, however.that the run of the belt 130 which is nearest the center of rotation ofthe table 45 moves generally in continuation of the rotational movementof the table 45. Thus, adjacent runs of the belts 96 and 130 movegenerally in the same direction and, as aforementioned, in generalconvinuation of the rotative movement of the table 45.

The width of spacing between adjacent runs of the belts 96 and 130 isadjustable by pivotal movement of the clamp member 89 about the stubshaft 85. It is desirable in the operation of the can positioning device16 that these adjacent runs be disposed substantially in parallelrelation to each other, which can be accomplished regardless of thewidth of spacing therebetween by proper selection of the size of thepulley 93. The spaced relation of adjacent runs of the belts 96 and 130denes a discharge channel through which cans or `similar articles may bemoved, as will appear. i

It is obvious that the size of the pulley 93 will have no eiect upon thelinear speed of the belt 96. Normally, the speed of the belt 130 ismaintained about 25% greater than that of the belt 96, this differencein speed being achieved by proper selection of the various pulleys.

As can readily be seen from Fig. 1, non-,round cans 135, or the like,may be placed in masses or scattered on the upper surface of theconveyor belt 30 for advancement toward the rotating table 4 5.' As thecans are pushed across the transition plate 19 onto the table 45, theyare, of course, subjected to the rotational movement of the table 45 andare also moved outwardly thereon by centrifugal force so as to tend toalign themselves against the retaining plate member 55. With theadjacent runs of the belts 96 and 130 spaced apart a distance'a littlegreater than the narrow dimension of the cans 135, it is clear that cansintroduced therebetween by the rotating table 45 can be further advancedonly when brought forward in a position to present the narrow dimensionfor admittance to the discharge channel deined bythe belts 96 and 130.If any can is not so presented, it will, upon being engaged by the belts96 and 130, be'rotated von its vertical axis due to the difference inlinear speed of the two belts and upon attaining a desired position willbe free to pass between the belts and be discharged from the rotatingtable 45.

Should any can fail to be carried to a position from which it can enterthe discharge rchannel between the belts 96 and 130, it will be carriedby the table 45 into abutment with the deiiector bar 100 and 'will bedeected inwardly toward the center yo f rotation -of the fable 45 so asto bypass the approaching mass of cans from the conveyor belt 30 andwill thus be given another opportunity to be properly positioned anddischarged from the unscrambler construction 15.

Figs. 7 and 8 show a modied attachment type can positioning device 140in which an inner belt assembly 141 and an outer belt assembly y142include separate prime movers 143 and 144, respectively. The canpositioning device 140 is illustrated attached to an unscramblerconstruction 145 which includes a `rotatable table 146 not having awedge-shaped rim such as 52 on the table 45 of the unscramblerconstruction 15. The remaining structure of the unscrambler.construction 145, however, may be substantially identical lto that ofthe construction 15, and it will be observed that like elements in theconstruction 145 are given like numbers distinguished by the addition ofa prime.

The prime movers 143 and 144, here shown as electric motors, may beidentical and each is appropriately mounted to the supporting frame4177', as clearly shown in Figs. 7 and 8 of the drawings. Each of theprime movers 143 and 144 has a shaft extension 150 secured to itsextended power shaft, being thus adapted to causerotation of pulleys 151and 152, respectively keyed to these shafts 150. The pulley 151, drivenby the prime mover 143, is normally smaller in diameter than 'the pulleyI152, vdriven by the prime mover 144, it being thus apparent that thebelt 96', driven by the pulley 151, will have a lesser linear speed oftravel than the belt 130', driven by the pulley 152.

The pulley 122', preferably equal in size to the pulley 152, alsoengages the belt 130 and is rotatably ymounted on a stub shaft 156supported on a slotted bracket 160 welded to the arcuate strap member2.7' `of the supporting frame 17. A cap screw 161 is threadedly receivedin the bracket 160 so as to dispose its received end in a s'lot 162 andin abutment with the shaft `156, thereby providing means for adjustingthe tension of the belt 130'. A jamb nut 163 is provided to maintain theadjusted position of the shaft 156.

Means for supporting the pulley 93' which cooperates with the pulley 151to support the belt 96 may be, as shown, identical with the means forsupporting the pulley 93 in the inner belt assembly 60 of the canpositioning device 16, except for the support of the clamp bracket 89which corresponds to the clamp bracket '89 in the assembly 60. In thepresent device 140, the clamp bracket 89 is adjustably mounted on adepending stub shaft 165 secured in a clamp block 166, the latter beingin turn adjustably mounted on a Vertical stub shaft 167 welded to therail member 25 of the supporting frame 17". Such an arrangement not onlypermits the inner belt assembly 141 to be operationally adjusted in thesame manner as the inner belt assembly 60 of the device 16, but alsoprovides for adjustment of the deiiector bar relative to the belt 96'.

It may be readily seen that the operation of the un- Scramblerconstruction in handling cans or the like is identical with that of theconstruction 15, above described.

Clearly, there has been provided an unscrambler construction whichfulfills the objects and advantages sought therefor.

It is to be understood that the foregoing description and theaccompanying drawings have been given by way or the like in masses foradvancement toward the can positioning means, means for advancing thecans to the vicinity of the can positioning means, means for aligning atleast a portion of the cans in single le during said advancement, andmeans for dei'lecting any remaining cans from the vicinity of the canpositioning means for readvancement to the vicinity thereof, said canpositioning means comprising spaced beltsfor engaging opposite sides yofa moving can, said belts being movable at different speeds in the samedirection. y

2. An unscrambler construction comprising, in combination, horizontallyrotatable can displacing means, and can positioning means forcooperation with said can displacing means, said can positioning meansincluding a plurality of differentially movable elements for engagingopposite sides of a moving can, said elements having respective adjacentportions disposed linearly in substantially parallel spaced relation toeach other.

3. An unscrambler construction comprising, in combination, horizontallyrotatable can displacing means, and can positioning means forcooperation with said can displacing means, said can positioning meansincluding a plurality of diiferentially movable elements for engagingopposite sides `of a moving can, said elements having respectiveadjacent portions disposed linearly in substantially parallel spacedrelation to each other, means for supporting said elements includingmeans 'for adjusting the spaced relation thereof, and means for drivingsaid elements in differential movement.

4. An unscrambler construction comprising, in combination, horizontallyrotatable can displacing means, can positioning means for cooperationwith said can displacing means, said can positioning means including aplurality of differentially movable elements for engaging opposite sidesof a moving can, said elements having respective adjacent portionsdisposed linearly in substantially parallel spaced relation to eachother, means for supporting said elements including means for adjustingthe spaced relation thereof, and means for driving said elements indifferential movement, said latter means including rotatable elements indriven engagement with said can displacing means.

5. An unscrambler construction comprising, in combination, horizontallyrotatable can displacing means, can vpositioning means for cooperationwith said can displacing means, said can positioning means including aplurality of differentially movable elements for engaging opposite sidesof a moving can, said elements having respective adjacent portionsdisposed linearly in substantially parallel spaced relation to eachother, means for supporting said elements including means for adjustingthe spaced relation thereof, and means for driving said elements indifferential movement, said latter means including a prime mover.

6. An unscrambler construction comprising, in combination, horizontallyrotatable can displacing means,

` can positioning means for cooperation with said can displacing means,said can positioning means including a plurality of differentiallymovable elements for engaging opposite sides of a moving can, saidelements having respective adjacent portions disposed linearly insubstantially parallel spaced relation to each other, means forsupporting said elements including means for adjusting the spacedrelation thereof, and means for driving said elements in differentialmovement, said latter means including a prime mover for each of saidelements.

7. An unscrambler construction for non-round articles comprising, incombination, horizontally rotatable article displacing means, andarticle positioning means forcooperation with said article displacingmeans, said article positioning means including a first andy a secondbelt assembly, means for supporting said belt assemblies so as to definea discharge channel therebetween in predetermined relation with saidarticle displacing means, said discharge channel having a widthintermediate the maximum and minimum transverse dimensions of saidnonround articles, a belt for each assembly, and means for driving thebelts at different rates of speed.

8. An unscrambler construction for non-round articles comprising, incombination, a round table mounted for rotation in a horizontal plane, arotatable idler wheel in driven engagement with the table, a first drivepulley in driven engagement with the idler wheel, a second drive pulleyin driven engagement with the table, an idler pulley for each drivepulley, a belt for each drive pulley, means for independently adjustingthe tension of the belts, and means for disposing adjacent linear runsof the belts in substantially parallel predetermined spaced relation toeach other, said spaced relation being intermediate the maximum andminimum transverse dimensions of said articles.

9. An unscrambler construction for non-round articles comprising, incombination, a round table mounted for rotation in a horizontal plane,and article positioning means including a first and a second verticalshaft outside the periphery of the table, a drive pulley on each shaft,an idler pulley for each drive pulley, a belt for each drive pulley,means for independently adjusting the tension of the belts, means fordisposing adjacent linear runs of the belts in substantially parallelpredetermined spaced relation to each other, and means for rotating saiddrive pulleys in respectively opposite directions.

10. An unscrambler construction for non-round articles comprising, incombination, a round table mounted for rotation in a horizontal plane, afirst and a second vertical shaft outside the periphery of the table, adrive pulley on each shaft, an idler pulley for each drive pulley, abelt for each drive pulley, means for independently adjusting thetension of the belts, means for disposing adjacent linear runs of thebelts in substantially parallel predetermined spaced relation to eachother, and means including a prime mover connected to at least one ofthe drive pulleys for rotating said drive pulleys in respectivelyopposite directions.

l1. An unscrambler construction comprising, in combination, a roundtable mounted for rotation in a horizontal plane, a first and a secondfixed vertical shaft, a third, a fourth, and a fifth horizontallymovable vertical shaft, means supporting said third shaft forindependent movement both radially of and pivotally about said `firstshaft. means supporting said fourth shaft for independent movement bothradially of and pivotally about said Cit second shaft, means, includingpivot means, supporting said fifth shaft for independent linear andpivotal movement relative to said pivot means, a first, a second, athird, a fourth, and a fifth rotatable element on said first, second,third, fourth, and fifth shafts respectively, a first belt onf saidfirst and third rotatable elements, a second belt on said second andfourth rotatable elements, adjustable means for biasing said fifthrotatable element into frictional engagement with both the periphery ofsaid table and said first rotatable elementfand adjustable means forbiasing said third rotatable element into frictional engagement with theperiphery of said table.

, 12. vAn unscrambler construction comprising, in combination, a roundtable mounted for rotation in a horizontal plane, a first and a secondfixed vertical shaft, a third,ra fourth,and a fifth horizontally movablevertical shaft, means supporting said third shaft for independentmovement both radially of and pivotally about said first shaft, meanssupporting said fourth shaft for independent movement both radially ofand pivotally about said second shaft, means, including pivot means,supporting said fifth shaft for independent linear and pivotal movementrelative to said pivot means, a first, a` second, a third, a fourth, anda fifth rotatable element on said first, second, third, fourth, andfifth shafts respectively, a first belt on said first and thirdrotatable elements, a second belt on said second and fourth rotatableelements, adjustable means for biasing said fifth` rotatable elementinto frictional engagement with both the periphery of said table andsaid first rotatable element, and adjustable means for biasing saidthird rotatable element into frictonal engagement with the periphery ofsaid table, said first, third, and fifth rotatable elements beingvertically movable on their respective shafts.

13. An unscrambler construction comprising, in combination, a roundtable mounted `for rotation in a horizontal plane, first, second, third,and fourth vertical shafts, first, second, third, and fourth rotatableelements mounted on said first, second, third, and fourth shaftsrespectively, afirst belt on said first and second rotatable elements, asecond belt on said third and fourth rotatable elements, means,including adjustable means, supporting said second shaft for movementboth pivotally about and substantially radially of said first shaft,means, including adjustable means, supporting said fourth shaft formovement substantially radially of said second shaft, and means forrotating said first and third rotatable elements.

14. An unscrambler construction comprising, in combination, a roundtable mounted for rotation in a horizontall plane, first, second, third,and fourth vertical shafts, first, second, third, and fourth rotatableelements mounted on said first, second, third, and fourth shaftsrespectively, a rst belt on said first and second rotatable elements, asecond belt on said third and fourth rotatable elements, means,including adjustable means, supporting said second shaft for movementboth pivotally about and substantially radially of said first shaft,means, including adjustable means, supporting said fourth shaft formovement substantially radially of said second shaft, and first andsecond prime movers connected to said first and third shaftsrespectively.

References cned in uw.` sie of this patent UNITED s'rATEs PATENTS1,273,470 Estes July 23, 1918 1,430,132' Wilberts Sept. 26, 1922`2,047,106 `Lidberg July 7, 1936 2,437,721` Barganz Mar. 16, 19482,541,300 Silva Feb. 13, 1951 2,567,504 Becmer Sept. l1, 1951 2,629,481Stover Feb. 24, 1953 `2,642,173 Wehmiller June 16, 1953 FOREIGN PATENTS109,097 'Australia Nov. 23, 1939

